This river is so big that it is impossible to build a _______ under it without modern technology.

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This river is so big that it is impossible to build a _______ under it without modern technology.

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This river used to ______ a terrible smell, but now it is clear and clean.

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A healthy river is ___fish.

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This brand of wine is in short ________ at the moment, so it is very expensive.

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问答题

e river best known to the ancient Greeks was the Nile of Egypt. They spoke of the river with admiration and called Egypt “the gift of the Nile”. The reason for this was, first, that the Nile brought water to a rainless desert and, second, that once a year, the river overflowed its banks, leaving, as the water went back, a new layer of fertile soil.　　The flood waters carry in them soil (called silt) from the upper parts of the river valley to the lower parts, and so to the sea. But as the river m

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